Kykar, Zephyr Awakener + Mnemonic Wall + Time Warp

Kykar, Zephyr Awakener

Mnemonic Wall

Time Warp

How it works

1. Cast Time Warp by paying its mana cost.
2. Kykar triggers, exiling Mnemonic Wall.
3. Resolve Time Warp, causing you to take an extra turn after this one.
4. At the beginning of your end step, Kykar triggers, returning Mnemonic Wall from exile to the battlefield.
5. When Mnemonic Wall enters, it triggers, returning Time Warp from your graveyard to your hand.
6. Repeat each turn.